Susanna Mayberry bought her first home years ago, but she remembers nothing about her real estate agent or the process. That’s a sign it was probably a smooth transaction, but uneventful, too, given her faded memory of it. Fast-forward to today, and Susanna doesn’t want to be a forgettable agent; she strives to provide her clients with fantastic service — and results — that they’ll fondly recall long after the deal closes.

An interior designer b...